Negative port: USB port, SD port, SDXC port, flash drive port. This converter adapter can be used to connect USB sticks, SD cards, and other data-related products to your phone, tablet, iPad, laptop, Mac Book, and other devices.
eBay
Soundbar Speakers, Bluetooth 5.3, Stereo Soundbar Surround Sound Home Cinema with Remote Control, Support RCA AUX TF-Card
Aliexpress UK
(2)When you enter the “Files” App, you can see the OTG device. 1)After inserting SD or TF cards in to coresponding card slot of the Adapter, plug the Type-c connector into Androidphone, the phone's interface will pop up the connected OTG device.
eBay
Under Pillow Bone Conduction Bluetooth Speaker White Noise Sleep Aid Soundbar with LED Display Timed Shutdown TF Card Music Play
Aliexpress UK
With the built in On-The-Go (OTG) functionality you can share photos and videos between your smartphone and SD / Micro SD cards using this card reader. OTG Support. Simply connect to a device to begin using the USB Type C Card Reader.
eBay
Speaker TG506 Portable Mini Wireless Soundbar Bluetooth 5.0 Outdoor Indoor HIFI Loudspeaker Support TF Card FM Radio Waterproof
Aliexpress UK
Compatible Card: For SD/T-Flash/ Micro SD Card. Interface: USB 2.0 and USB 1.1. A T-flash Card slot on the tail and a plastic cover for protecting the USB plug. High speed data transmission. Small size,easy for carry.
eBay
Megaphone Speaker 50W Power Portable Bullhorn Megaphone Voice Siren/Alarm Modes Volume Control USB Flash Drive TF Card BT Alarm
Aliexpress UK
Slot : Micro SD/Micro SDHC/Micro SDXC + USB 3.0. LED indicator for working status.
eBay
T&G TG117 Portable Bluetooth Speaker Outdoor Wireless Woofer Free Call /FM/TF Card/USB Flash Drive Connect Mobile Phone/Tablet
Aliexpress UK
Card Compatibility: Micro SD / SDXC / TF. Easy to work with and plugs in without any issues, this Mini USB 2.0 high speed adapter is just what you need and is compatible with many cards. Simply plug it in and start using it: this loads up simply by plugging it into the USB port and letting it power up that way.
eBay
Mini Retro White Noise Bluetooth Speaker Portable Vintage Sleep Aid Bluetooth Speaker Subwoofer With RGB Light Support TF Card
Aliexpress UK
OTG USB C Smartphone: Samsung S9/S9 Plus/S8/S8 Plus/Note 8, Google Pixel XL/2/2XL, Google Nexus 5X/Nexus 6P, LG V20/ V30/ G5/ G6, Moto Z, Microsoft Lumia 950 XL/950, OnePlus 5/ 3T/ 3, Huawei P10/ Mate10 etc.
eBay
Cycling Bluetooth Speaker Waterproof Support Memory Card Radio Portable Wireless Speaker with Bike Bracket Portable Speaker
Aliexpress UK
Dual Slot Design: Supports Micro SD, Micro SDHC, and Micro SDXC cards along with a USB 3.0 port. LED Indicator: Built-in light shows active connection and data transfer status.
eBay
TG117 Portable Bluetooth Speaker Outdoor Wireless Woofer Free Call /FM/TF Card/USB Flash Drive Connect Mobile Phone/Tablet/TV
Aliexpress UK